ECS-250-18-20BM-JEM-TR

Crystals Overview

The ECS-250-18-20BM-JEM-TR is a surface-mount crystal oscillator manufactured by ECS Inc. This component operates at a fundamental frequency of 25.0 MHz with a load capacitance specification of 18 pF. It utilizes a 4-pin SMD package, specifically the 2032 footprint, designed for automated assembly processes. The device features a tolerance of ±20 ppm over the commercial temperature range of -10°C to +70°C and includes an integrated EMI suppression filter to minimize electromagnetic interference emissions during operation.

Crystals Feature Summary

• Integrated EMI suppression filter for reduced electromagnetic interference
• Surface-mount design optimized for high-volume automated assembly
• Fundamental mode operation ensuring stable frequency generation

Crystals Applications

• Consumer electronics requiring low-noise clock signals
• Communication modules needing precise timing references
• Embedded systems utilizing surface-mount technology

Crystals Procurement Notes

Verify the specific ordering suffix JEM-TR against the manufacturer's current datasheet to confirm tape-and-reel packaging and exact frequency stability specifications. Ensure compatibility with reflow soldering profiles recommended for 4-pin SMD crystals. Cross-reference the load capacitance requirement with the host circuit design to maintain oscillation accuracy within specified tolerances.

Crystals Selection Notes

Select this component when EMI reduction is critical for signal integrity in compact designs. The 18 pF load capacitance must match the external circuit requirements to achieve the stated ±20 ppm accuracy. Consider the operating temperature range limits for environments exceeding standard commercial specifications.

Crystals Part Context

This part belongs to ECS Inc.'s line of surface-mount crystal oscillators designed for space-constrained applications. The 2032 package size offers a balance between performance and board area efficiency. The inclusion of filtering distinguishes it from basic unfiltered crystal units, addressing modern EMC compliance challenges in dense electronic assemblies.

Crystals Replacement Considerations

Direct substitutes require matching the 25.0 MHz frequency, 18 pF load capacitance, 4-pin 2032 package, and integrated EMI filter functionality. Verify equivalent tolerance and temperature range specifications before substitution.